13726739 has 8 divisors (see below), whose sum is σ = 14861952. Its totient is φ = 12602880.

The previous prime is 13726733. The next prime is 13726747. The reversal of 13726739 is 93762731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13726739 - 2⁴ = 13726723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13726733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227 + ... + 5244.

It is an arithmetic number, because the mean of its divisors is an integer number (1857744).

Almost surely, 2^13726739 is an apocalyptic number.

13726739 is a deficient number, since it is larger than the sum of its proper divisors (1135213).

13726739 is a wasteful number, since it uses less digits than its factorization.

13726739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5677.

The product of its digits is 47628, while the sum is 38.

The square root of 13726739 is about 3704.9614033077. The cubic root of 13726739 is about 239.4358217922.

The spelling of 13726739 in words is "thirteen million, seven hundred twenty-six thousand, seven hundred thirty-nine".